package java.lang;

/**
 * 禁止使用包名
 * java.lang.SecurityException: Prohibited package name: java.lang
 * */
public class MyLong {

    public void testClassLoader() {
        System.out.println("自定义MyLong类被" + MyLong.class.getClassLoader() + "加载了");
    }

    public static void main(String[] args) {
        System.out.println("MyLong");
    }
}
